I'm going to hookize TARGET_FLT_EVAL_METHOD, so the current definition
of TARGET_FLT_EVAL_METHOD_NON_DEFAULT will stop working.

The relaxation enabled by TARGET_FLT_METHOD_NON_DEFAULT isn't portable,
and keeping it in place is tricky, so this patch removes it, and poisons
TARGET_FLT_EVAL_METHOD_NON_DEFAULT in system.h to prevent future use.

gcc/

	* defaults.h (TARGET_FLT_EVAL_METHOD_NON_DEFAULT): Remove.
	* system.h (TARGET_FLT_EVAL_METHOD_NON_DEFAULT): Poison.

gcc/c-family/

	* c-opts.c (c_common_post_options): Remove special case for
	TARGET_FLT_EVAL_METHOD_NON_DEFAULT with -fexcess-precision=standard
	in C++.

gcc/java/

	* lang.c (java_post_options): Remove special case for
	TARGET_FLT_EVAL_METHOD_NON_DEFAULT with -fexcess-precision=standard.

gcc/fortran/

	* options.c (gfc_post_options): Remove special case for
	TARGET_FLT_EVAL_METHOD_NON_DEFAULT with -fexcess-precision=standard.

gcc/ada/

	* gcc-interface/misc.c (gnat_post_options): Remove special case for
	TARGET_FLT_EVAL_METHOD_NON_DEFAULT with -fexcess-precision=standard.

From-SVN: r240614

	* gcc.dg/profile-update-warning.c: Restrict to ia32.
	(dg-options): Remove -m32.

From-SVN: r240613

2016-09-29  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (set_defs_to_varying): New helper avoiding
	writing to vr_const_varying.
	(vrp_initialize): Call it.
	(vrp_visit_stmt): Likewise.
	(evrp_dom_walker::before_dom_children): Likewise.

From-SVN: r240612

2016-09-29  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (vectorizable_load): Avoid emitting vector
	constructors with vector elements.

From-SVN: r240611

re PR bootstrap/77768 (LTO/PGO -O3 bootstrap broken: tree-vrp.c:11053:0: internal compiler error: Segmentation fault)

2016-09-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/77768
	* tree-ssa-sccvn.c (visit_reference_op_store): Properly deal
	with stores to a place we know has a constant value.

From-SVN: r240610

    
    Also copy over cputicks.go, env_posix.go, vdso_none.go, stubs2.go, and a
    part of os_linux.go.  Remove the corresponding functions from the C code
    in libgo/go/runtime.  Add some transitional support functions to
    stubs.go.  This converts several minor functions from C to Go.
    
    Reviewed-on: https://go-review.googlesource.com/29962

From-SVN: r240609

From-SVN: r240607

compatibility-ldbl.o is compiled with -mlong-double-64.  When
long double .gnu.attributes tags are checked by the linker, it
complains about the mismatch between this file and others in
libstdc++.

	* configure.ac (LONG_DOUBLE_COMPAT_FLAGS): New ACSUBST.
	* src/Makefile.am (compatibility-ldbl.o, compatibility-ldbl.lo):
	Use LONG_DOUBLE_COMPAT_FLAGS.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* python/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++98/Makefile.in: Regenerate.
	* src/filesystem/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

From-SVN: r240602

Extend this attribute to cover long double ABIs, for 64-bit too.

This patch also corrects an error that crept in to code setting
rs6000_passes_float.  See the added comment.  Passing IEEE128 values
in vsx regs ought to set both Tag_GNU_Power_ABI_FP and
Tag_GNU_Power_ABI_Vector.  Also adds a new option, default on, that
disables output of .gnu_attribute assembly directives.

	* config/rs6000/sysv4.opt (mgnu-attribute): New option.
	* doc/invoke.texi: Document it.
	* config/rs6000/rs6000.c (HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE): Define.
	(rs6000_passes_float): Comment.
	(rs6000_passes_long_double): New static var.
	(call_ABI_of_interest): Return false unless rs6000_gnu_attr is set.
	(init_cumulative_args): Set up to emit fp .gnu_attribute for
	ELF 64-bit ABIs as well as 32-bit ELF.  Correct rs6000_passes_float
	to include fp values returned in vectors.
	Set rs6000_passes_long_double.
	(rs6000_function_arg_advance_1): Likewise for function args.
	(rs6000_elf_file_end): Emit fp .gnu_attribute for ELF 64-bit ABIs,
	and SPE.  Emit long double tag value too.
	(rs6000_opt_vars): Add gnu-attr.
	* configure.ac (HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE): New ppc32 test.
	* configure: Regenerate.
	* config.in: Regenerate.

From-SVN: r240601

	* gimple-ssa-sprintf.c (pass_sprintf_length::gate): Use x > 0 instead
	of 0 < x.
	(format_floating, format_string, format_directive,
	get_destination_size, pass_sprintf_length::handle_gimple_call):
	Likewise.

From-SVN: r240600

	PR target/77756
	* config/i386/cpuid.h (__get_cpuid): Handle CPUID level >= 7.

testsuite/ChangeLog:

	PR target/77756
	* gcc.target/i386/pr77756.c: New test.

From-SVN: r240597

gcc/testsuite/ChangeLog:
	PR middle-end/77721
	* gcc.dg/tree-ssa/builtin-sprintf-warn-6.c: New test.

From-SVN: r240595

	* gimple-ssa-sprintf.c: Fix comment formatting.
	(format_integer): Use is_gimple_assign.
	(pass_sprintf_length::handle_gimple_call): Use gimple_call_builtin_p
	and gimple_call_fndecl.  Reorder case BUILT_IN_SPRINTF_CHK.  Fix up
	BUILT_IN_SNPRINTF_CHK comment.  Replace "to to" with "to" in comment.
	(pass_sprintf_length::execute): Use is_gimple_call.

From-SVN: r240594

2016-09-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/77707
	* gfortran.dg/inquire_17.f90: New test.

From-SVN: r240593

2016-09-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/77707
	io/transfer.c (next_record): Flush before calculating next_record.
	Correctly calculate.

From-SVN: r240592

	PR c++/77467
	* constexpr.c (enum constexpr_switch_state): New.
	(struct constexpr_ctx): Add css_state field.
	(label_matches): Add CTX and STMT arguments, remove I and
	DEFAULT_LABEL.  For CASE_LABEL_EXPR assert ctx->css_state != NULL,
	handle default labels according to css_state.
	(cxx_eval_statement_list): Remove statement skipping, label_matches
	and default_label handling code.
	(cxx_eval_loop_expr): Exit after first iteration even if
	switches (jump_target).
	(cxx_eval_switch_expr): Set up css_state field in ctx, if default
	label has been seen in the body, but no cases matched, evaluate
	the body second time.
	(cxx_eval_constant_expression): Handle stmt skipping and label_matches
	here.  Handle PREDICT_EXPR.  For MODIFY_EXPR or INIT_EXPR, assert
	statement is not skipped.  For COND_EXPR during skipping, don't
	evaluate condition, just the then block and if still skipping at the
	end also the else block.
	(cxx_eval_outermost_constant_expr): Adjust constexpr_ctx initializer.
	(is_sub_constant_expr): Likewise.

	* g++.dg/cpp1y/constexpr-77467.C: New test.

From-SVN: r240591

	* config/i386/cpuinfo.c (__get_cpuid_output): Remove.
	(__cpu_indicator_init): Call __get_cpuid, not __get_cpuid_output.

From-SVN: r240590

From-SVN: r240589

    
    Tweak the makefile rules for the runtime/check test to
    insure that the runtime package is compiled with
    "-fgo-compiling-runtime". This resolves a test failure
    (unsat on runtime.getcallerpc) when in a build directory where the
    compiler flags have been configured to disable optimization.
    
    Reviewed-on: https://go-review.googlesource.com/30010

From-SVN: r240588

	* include/experimental/bits/fs_fwd.h (file_time_type): Simplify
	definition.
	* src/filesystem/ops.cc (file_time): Take error_code parameter and
	check for overflow.
	(do_copy_file, last_write_time): Pass error_code in file_time calls.
	* testsuite/experimental/filesystem/operations/last_write_time.cc:
	New.
	* testsuite/util/testsuite_fs.h (scoped_file): Define RAII helper.

From-SVN: r240587

If strchr can't be folded in gimple-fold, we still need to fall into
the generic code so the folding code in builtins.c is also called.

    gcc/
	* gimple-fold.c (gimple_fold_builtin): After failing to fold
	strchr, also try the generic folding.

From-SVN: r240585

gcc/testsuite/ChangeLog:

	PR c/77762
	* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c (test_vsnprintf_chk_s):
	Call __builtin___vsnprintf_chk, not __builtin___snprintf_chk.
	(test_sprintf_p_const): Adjust line numbers to avoid failures
	introduced in r240503.

gcc/ChangeLog:

	PR c/77762
	* gimple-ssa-sprintf.c (pass_sprintf_length::handle_gimple_call):
	Fix typos.

From-SVN: r240584

gcc/testsuite/ChangeLog:

	PR middle-end/77683
	* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Add test cases.

gcc/ChangeLog:

	PR middle-end/77683
	* gimple-ssa-sprintf.c (format_integer): Fail gracefully when
	length modifier is not expected.
	(format_floating): Ignore l length modifier and fail gracefuly
	when it isn't one of the other expected ones.

From-SVN: r240583

gcc/ChangeLog:

	PR bootstrap/77753
	* varasm.c (assemble_addr_to_section): Increase local buffer size.

From-SVN: r240581

2016-09-27  Richard Biener  <rguenther@suse.de>

	* dwarf2out.c (cu_die_list): New global.
	(dwarf2out_finish): Walk cu_die_list instead of limbo DIEs.  Add
	main_comp_unit_die to cu_die_list if we created it.
	Move break_out_includes ...
	(dwarf2out_early_finish): ... here.  Push created CU DIEs onto
	the cu_die_list.

From-SVN: r240579

2016-09-28  Richard Biener  <rguenther@suse.de>

	* dwarf2out.c (struct die_struct): Add removed flag.
	(lookup_type_die): If the DIE is marked as removed, clear
	TYPE_SYMTAB_DIE and return NULL.
	(lookup_decl_die): If the DIE is marked as removed, remove it
	from the hash and return NULL.
	(mark_removed): New helper.
	(prune_unused_types_prune): Call it for removed DIEs.
	(gen_subprogram_die): Move the premark_used_types call to after
	DIEs for the functions scopes are generated.
	(process_scope_var): Do not re-create pruned types or type decls.
	Make sure to also re-parent type decls.
	(dwarf2out_finish): Move unused type pruning and debug_types
	handling ...
	(dwarf2out_early_finish): ... here.

From-SVN: r240578

gcc/
2016-09-29  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-c.c: New file.
	* config/arc/arc-c.def: Likewise.
	* config/arc/t-arc: Likewise.
	* config.gcc: Include arc-c.o as c and cpp object.
	* config/arc/arc-protos.h (arc_cpu_cpp_builtins): Add prototype.
	* config/arc/arc.h (TARGET_CPU_CPP_BUILTINS): Use
	arc_cpu_cpp_builtins.

From-SVN: r240577

2016-09-29  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (*rotrsi3_cnt1): New pattern,
	(*ashlsi2_cnt1, *lshrsi3_cnt1, *ashrsi3_cnt1): Likewise.

From-SVN: r240576

2016-09-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/77748
        * g++.dg/pr77550.C: Avoid undefined behavior.

From-SVN: r240573

2016-09-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * gcc.dg/tree-ssa/pr68198.c: Fix dg-final.

From-SVN: r240572

	* gimple-pretty-print.c (dump_gimple_call_args): Simplify "' "
	printing.

From-SVN: r240570

2016-09-28  Claudiu Zissulescu  <claziss@synopsys.com>

	* MAINTAINERS (Reviewers): Add myself.

From-SVN: r240569

Optimize strchr (s, 0) to s + strlen (s).  strchr (s, 0) appears a common
idiom for finding the end of a string, however it is not a very efficient
way of doing so.  Strlen is a much simpler operation which is significantly
faster (eg. on x86 strlen is 50% faster for strings of 8 bytes and about
twice as fast as strchr on strings of 1KB).

    gcc/
	* gimple-fold.c (gimple_fold_builtin_strchr):
	New function to optimize strchr (s, 0) to strlen.
	(gimple_fold_builtin): Add BUILT_IN_STRCHR case.

    testsuite/
	* gcc.dg/strlenopt-20.c: Update test.
	* gcc.dg/strlenopt-21.c: Likewise.
	* gcc.dg/strlenopt-22.c: Likewise.
	* gcc.dg/strlenopt-22g.c: Likewise.
	* gcc.dg/strlenopt-26.c: Likewise.
	* gcc.dg/strlenopt-5.c: Likewise.
	* gcc.dg/strlenopt-7.c: Likewise.
	* gcc.dg/strlenopt-9.c: Likewise.

From-SVN: r240568

	PR libstdc++/77686
	* include/std/functional (_Any_data): Add may_alias attribute.

From-SVN: r240567

Fix PR tree-optimization/77724

2016-09-27  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        PR tree-optimization/77724
        * tree-vect-loop-manip.c (create_intersect_range_checks_index):
        Add tree_fits_shwi_p check.

From-SVN: r240565

From-SVN: r240564

From-SVN: r240563

    
    This is a step toward a version of mksysinfo that generates information
    for the runtime package.  This will be used to generate the
    runtime_sysinfo.go file, which is currently directly generated by a
    Makefile target.
    
    Reviewed-on: https://go-review.googlesource.com/29683

From-SVN: r240560

    
    During the compiler's order_evaluations() pass, duplicate
    call statements were being created and inserted into block
    statement lists in situations where there were calls returning
    multiple arguments. These duplicates were benign in that they
    were ignored during backend code generation, however they
    did cause duplicate calls in AST dumps. Tweak the order
    evaluation code to handle this case better and avoid inserting
    these duplicates.
    
    Fixes golang/go#17237
    
    Reviewed-on: https://go-review.googlesource.com/29857

From-SVN: r240559

    
    When emitting AST dumps, tag the end of selected statements with with
    source file and line number information where available. Example:
    
      tmp.76832448 = 0 // p.go:6
    
    Requires a corresponding change in gcc/go as well as this change to
    gofrontend.
    
    Reviewed-on: https://go-review.googlesource.com/29856

	* go-linemap.cc (Gcc_linemap::to_string): New method.

From-SVN: r240558